My gf and i engaged in oral sex yesterday, i shook the sperm from my penis and then put my hand in her vagina.we are both scared she might be pregnant?

Unprotected sex: Unprotected sex is best (most fun) way to get pregnant. If you're worried after the fact, and it's been less than 72hrs, she can try emergency contraception such as Plan B which is available w/o prescription. If you're beyond 72hr window, then you'll need to sit tight for next 3+wks for her period. If she's late, then buy her a home pregnancy test. If neg, take her to Family Doc for birth control.